CSS-First
JavaScript handles logic. CSS handles expression. When something needs to open, close, or animate, JavaScript toggles a class. CSS already knows what that class looks like and how to get there. This separation keeps components readable, portable, and easy to adjust.
Production-Ready
Every component runs out of the box. Copy the HTML, CSS, and JavaScript and it works. No dependencies to install. No libraries that break on update. Framework-agnostic code you can adapt and ship as your own.
Lightweight
CSS transitions run on the GPU and stay smooth even when JavaScript is busy. Components built this way are faster, easier to maintain, and more resilient. When JavaScript fails to load, styles still apply and the experience degrades instead of breaking.